Abstract
An investigation for spray characteristics such as liquid breakup length and spray cone angle of a charge-injected electrostatic pressure-swirl nozzle has been conducted. The work forms part of the design and development of electrospray nozzle for practical oil burner application. The designed nozzle used in the experiment consists of a sharp pointed tungsten wire as a charge injector and the nozzle body grounded. The spray characteristics of the nozzle have been investigated by using kerosene without active surface agent. The liquid breakup length decreased while the spray angle increased with an increase in applied voltage and injection pressure. An empirical equation to predict the breakup length for electrostatic pressure-swirl nozzle has been suggested. The experimental result was within the range of the predicted equation.
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